Chinese inventors recommend you to monitor the air quality in the room in which the user is located. Thus, high concentrations of pollutants may cause fatigue, headache and anxiety, and prolonged stay in such conditions increases the likelihood of heart disease and stroke. The analyzer AirVisual Node in real time monitors the condition of the air in the room, informing the user about its status. The device combines sensors for temperature, humidity, CO2 and particles in the air (changing CO2 levels can indicate the increase of bacteria, moulds and other harmful substances, while the fine solid particles can damage the throat and lungs).